Really nice shadow with CSS getting bigger on hover
Shadows are not very modern nowadays, but this looks really good.
.shadow {
box-shadow: 0 1px 4px rgba(0,0,0,0.12), 0 1px 3px rgba(0,0,0,0.27);
transition: all 0.3s cubic-bezier(.25,.8,.25,1);
}
.shadow:hover {
box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.17);
}